happycpu notepad

2023-03-01

[nmcli] mac ip match

sudo nmcli connection modify eth0 ipv4.method shared
sudo nmcli connection modify eth0 ipv4.dhcp-client-id "my_client_id"
sudo nmcli connection modify eth0 ipv4.dhcp-timeout 120
sudo nmcli connection modify eth0 ipv4.dhcp-hostname "my_hostname"
sudo nmcli connection modify eth0 ipv4.dhcp-lease-time 3600
sudo nmcli connection modify eth0 ipv4.dhcp-send-hostname yes
sudo nmcli connection modify eth0 ipv4.dhcp-send-client-id yes
sudo nmcli connection modify eth0 ipv4.dhcp-hostname "my_hostname"
sudo nmcli connection modify eth0 +ipv4.dhcp-hostname-mac 00:11:22:33:44:55,192.168.1.50
sudo nmcli connection modify eth0 +ipv4.dhcp-hostname-mac 00:AA:BB:CC:DD:EE,192.168.1.51

2023-02-28

[docker] portainer

$ docker volume create portainer_data

$ docker run -d -p 8000:8000 -p 9443:9443 --name portainer --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v /data/portainer:/data portainer/portainer-ce:latest

2023-02-27

[docker] maclvan

1. macvlan을 생성한다.

MACVLAN_PARENT_INTERFACE=enx047bcb5e8b20

MACVLAN_SUBNET=192.168.25.0/24

MACVLAN_GATEWAY=192.168.25.1

docker network create -d macvlan --subnet=$MACVLAN_SUBNET --gateway=$MACVLAN_GATEWAY -o parent=$MACVLAN_PARENT_INTERFACE macvlan_network

#고정IP

docker run -itd --name=macvlan_container --network=macvlan_network --ip=192.168.25.100 --mac-address=00:11:22:33:44:55 hello:0.1

#자동IP

docker run -it --name=macvlan_container --network=macvlan_network --mac-address=00:11:22:33:44:55 hello:0.1

[BLE] 다이소 ble모듈 리눅스에 연결시... 해결법.

[46864.573210] usb 3-3.4.3.4.3: new full-speed USB device number 15 using xhci_hcd
[46864.682163] usb 3-3.4.3.4.3: New USB device found, idVendor=0bda, idProduct=8771, bcdDevice= 2.00
[46864.682171] usb 3-3.4.3.4.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[46864.682173] usb 3-3.4.3.4.3: Product: Bluetooth Radio
[46864.682174] usb 3-3.4.3.4.3: Manufacturer: Realtek
[46864.682176] usb 3-3.4.3.4.3: SerialNumber: 00E04C239987
[46864.692638] Bluetooth: hci1: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
[46864.693653] Bluetooth: hci1: RTL: rom_version status=0 version=1
[46864.693660] Bluetooth: hci1: RTL: loading rtl_bt/rtl8761bu_fw.bin
[46864.703096] bluetooth hci1: Direct firmware load for rtl_bt/rtl8761bu_fw.bin failed with error -2
[46864.703106] Bluetooth: hci1: RTL: firmware file rtl_bt/rtl8761bu_fw.bin not found

$ cd /usr/lib/firmware/rtl_bt $ sudo ln -s rtl8761b_fw.bin rtl8761bu_fw.bin

2023-02-17

[팁] ssh접속시 다 보내기.

#접속만 하고싶다. sshpass -p 'P@ssw0rd' ssh -o StrictHostKeyChecking=no root@1.2.3.4 #파일복사 하고싶다. sshpass -p 'P@ssw0rd' scp -o StrictHostKeyChecking=no * root@remotsvr.local:/usr/local/fw/ [원문] https://zetawiki.com/wiki/%EB%A6%AC%EB%88%85%EC%8A%A4_sshpass_%EC%82%AC%EC%9A%A9%EB%B2%95

2023-02-14

[개발노트] embedded linux vscode remote gdb

vscode로 편집만 하던 리눅스 app을 원격 디버깅 해보기.

sudo apt install build-essential gdb gdb-multiarch

vscode 로 폴더 열기.

.vscode 폴더에 3개의 파일 만들기.

launch.json

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "GDB-Debug",
            "type": "cppdbg",
            "request": "launch",
            "program": "${config:BINARY}",
            "args": [],
            "stopAtEntry": true,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "console": "integratedTerminal",
            "MIMode": "gdb",
            "targetArchitecture": "arm",
            "preLaunchTask": "deploy",
            "setupCommands": [
                {
                    "description": "Pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true,
                }
            ],
            "miDebuggerPath": "/usr/bin/gdb-multiarch",
            "miDebuggerServerAddress": "${config:TARGET_IP}:${config:DEBUG_PORT}",
        }
    ]
}

settings.json

{
    "TARGET_IP":"192.168.25.53",
    "DEBUG_PORT":"6666",
    "BINARY":"s1app3",

    "SDK_DIR":"/home/happycpu/work/wrlinux/sdk/environment-setup-cortexa7t2hf-neon-vfpv4-wrs-linux-gnueabi",
}

tasks.json

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "label": "cross-compile",
            "type": "shell",
            "command": "sh",
            "args": [
                "cross-compile.sh",
                "${config:SDK_DIR}",
            ],
            "problemMatcher": [],
            "group": {
                "kind": "build",
                "isDefault": true
            }
        },
        {
            "label": "deploy",
            "isBackground": true,
            "type": "shell",
            "command": "sh",
            "args": [
                "deploy.sh",
                "${config:TARGET_IP}",
                "${config:DEBUG_PORT}",
                "${config:BINARY}"
            ],
            "problemMatcher": {
                "base": "$gcc",
                "background": {
                    "activeOnStart": true,
                    "beginsPattern": "${config:BINARY}",
                    "endsPattern": "Listening on port [0-9]{4}"
                }
            },
            "dependsOn": [
                "cross-compile"
            ],
        },
    ]
}

스크립트파일2개 추가.

cross-compile.sh

#!/bin/bash
SDK_DIR="$1"

. ${SDK_DIR}
cmake .
make clean; make -j$(nproc)

*yocto 의 sdk를 source 하여주는 행위와 cmake파일 생성하고 make까지 함.

deploy.sh

#!/bin/bash
DEST_IP="$1"
DEBUG_PORT="$2"
BINARY="$3"
DEST_DIR="/root"

# kill gdbserver on tx8m and delete old binary
ssh root@${DEST_IP} "sh -c '/usr/bin/killall -q gdbserver; rm -rf ${DEST_DIR}/${BINARY}  exit 0'"

# send binary to target
scp ${BINARY} root@${DEST_IP}:${DEST_DIR}/${BINARY}

# start gdbserver on target
ssh -t root@${DEST_IP} "sh -c 'cd ${DEST_DIR}; gdbserver localhost:${DEBUG_PORT} ${BINARY}'"